backend

Backend Project

TinyAIOT backend project built with Node.js and TypeScript.

Prerequisites

Before you begin, ensure you have the following installed on your system:

Node.js (v12 or higher)
npm (usually comes with Node.js)

Installation

Clone the repository:

git clone https://github.com/tinyaiot-ps/backend.git
cd backend

Install the dependencies:
```
npm install
```

Configuration

Create a .env file in the root directory of the project.
Add the necessary environment variables (e.g., database connection string, JWT secret, etc.).

Scripts

This project includes several npm scripts to help you develop, build, and run the application:

npm run dev: Starts the development server using nodemon for auto-reloading.
npm run build: Compiles the TypeScript code to JavaScript.
npm start: Runs the compiled JavaScript code.
npm run serve: An alias for npm start.

Development

To start the development server with auto-reloading:

npm run dev

Building for Production

To build the project for production:

npm run build

This will compile the TypeScript code into JavaScript in the dist directory.

Running in Production

To run the built project:

npm start

or

npm run serve

Dependencies

This project uses several key dependencies:

Express.js: Web application framework
Mongoose: MongoDB object modeling tool
bcrypt: Password hashing
jsonwebtoken: JWT authentication
MQTT: For MQTT protocol support
cors: Cross-Origin Resource Sharing
dotenv: Environment variable management

For a full list of dependencies and devDependencies, please refer to the package.json file.

API Documentation

Backend Project

This is a backend project built with Node.js and TypeScript.

API Documentation

This section provides documentation for the implemented API endpoints in the backend. These can be used to ensure smooth usage by the frontend team.

Base URL

The base URL for all API requests is:

localhost:5000/api/v1

Authentication

Login

URL: /auth/login
Method: POST
Description: Universal login route for all types of Users ('USER', 'ADMIN', 'SUPERADMIN')
Body Parameters:
- email (String): The user's email address
- password (String): The user's password
Status Codes:
- 200: OK
- 401: Unauthorized (invalid credentials)
- 404: Not found (user not found)
- 500: Internal server error

Response Example:

{
  "message": "Logged in successfully.",
  "user": {
    "id": "664db395875c07239abe7879",
    "email": "superadmin@tinyaiot.com",
    "role": "SUPERADMIN"
  },
  "token": "JpZCI6IjY2NGRiMzk1ODc1YzA3MjM5YWJlNzg3OSIsInJvbGUiOiJTVVBFUkFETUlOIiwiaWF0IjoxNzE3NTg0MzA2LCJleHAiOjE3MTc3NTcxMDZ9.swgoMlWCL_opDSa-rhgcCt6RhaympBkfzZPj7Ap4tSc"
}

Signup

URL: /auth/signup
Method: POST
Description: Universal signup route for User types ('USER', 'ADMIN'). Only users with the role ADMIN or SUPERADMIN can create new users.
Headers:
- Authorization (String) [required]: Bearer token
Body Parameters:
- role (String): The role of the new user ('USER', 'ADMIN', 'SUPERADMIN')
- email (String): The email address for the new user
- password (String): The password for the new user
- projects (Array): An array of project IDs the user is associated with
- preferences (Object): User preferences including language and themeIsDark
Status Codes:
- 201: Created
- 403: Forbidden (choose role SUPERADMIN or ADMIN)
- 409: Conflict (user already existing)
- 500: Internal server error

Request Body Example:

{
  "role": "USER",
  "email": "newuser@example.com",
  "password": "newuserpassword",
  "projects": ["60d5ec49eb172b30fc6d16a2"],
  "preferences": {
    "language": "EN",
    "themeIsDark": false
  }
}

Update User

URL: /auth/user
Method: PATCH
Description: Updates an existing user's details. Only SUPERADMIN can update all users. ADMIN can update users related to their projects, and users can update their own details.
Headers:
- Authorization (String) [required]: Bearer token
Body Parameters:
- userId (String): The ID of the user to update
- role (String, optional): The new role of the user ('USER', 'ADMIN')
- email (String, optional): The new email address of the user
- password (String, optional): The new password for the user
- projects (Array, optional): An updated array of project IDs the user is associated with
- preferences (Object, optional): Updated user preferences including language and themeIsDark
Status Codes:
- 200: OK
- 403: Forbidden (user can only update itself, otherwise choose role SUPERADMIN or ADMIN)
- 404: Not found (user not found)
- 500: Internal server error

Response Example:

{
  "message": "User updated successfully.",
  "user": {
    "id": "60d5ec49eb172b30fc6d16b1",
    "email": "updatedemail@example.com",
    "role": "USER",
    "projects": ["60d5ec49eb172b30fc6d16a2"],
    "preferences": {
      "language": "DE",
      "themeIsDark": true
    }
  }
}

City

Get City by ID

URL: /city/{id}
Method: GET
Description: Get a specific city by its ID
Headers:
- Authorization (String) [required]: Bearer token
Path Parameters:
- id (String): The ID of the city to retrieve
Status Codes:
- 200: OK
- 404: City not found (city is not yet created)
- 500: Internal server error

Response Example:

{
  "message": "City found",
  "city": {
    "_id": "60d5ec49eb172b30fc6d16b1",
    "name": "Münster",
    "createdAt": "2023-10-10T14:48:00.000Z",
    "updatedAt": "2023-10-10T14:48:00.000Z"
  }
}

Get All Cities

URL: /city
Method: GET
Description: Get a list of all cities
Headers:
- Authorization (String) [required]: Bearer token
Status Codes:
- 200: OK
- 500: Internal server error

Response Example:

{
  "message": "Cities found",
  "cities": [
    {
      "_id": "60d5ec49eb172b30fc6d16b1",
      "name": "Münster",
      "createdAt": "2023-10-10T14:48:00.000Z",
      "updatedAt": "2023-10-10T14:48:00.000Z"
    },
    {
      "_id": "60d5ec49eb172b30fc6d16b2",
      "name": "Emsdetten",
      "createdAt": "2023-10-10T14:48:00.000Z",
      "updatedAt": "2023-10-10T14:48:00.000Z"
    }
  ]
}

Create City

URL: /city
Method: POST
Description: Create a new city. Only users with the role SUPERADMIN can create new cities.
Headers:
- Authorization (String) [required]: Bearer token
Body Parameters:
- name (String): The name of the city, must be unique
Status Codes:
- 201: Created
- 403: Forbidden (choose role SUPERADMIN)
- 409: Conflict (city already exists)
- 500: Internal server error

Response Example:

{
  "_id": "60d5ec49eb172b30fc6d16b3",
  "name": "Hamburg",
  "createdAt": "2023-10-10T14:48:00.000Z",
  "updatedAt": "2023-10-10T14:48:00.000Z"
}

Project

Get All Projects

URL: /project
Method: GET
Description: Get a list of all projects
Headers:
- Authorization (String) [required]: Bearer token
Status Codes:
- 200: OK
- 500: Internal server error

Response Example:

{
  "projects": [
    {
      "_id": "60d5ec49eb172b30fc6d16b1",
      "name": "Project 1",
      "city": "60d5ec49eb172b30fc6d16b1",
      "users": ["60d5ec49eb172b30fc6d16b1"],
      "centerCoords": [7.6261, 51.9607],
      "initialZoom": 10,
      "preferences": {
        "fillThresholds": [30, 70],
        "batteryThresholds": [30, 70]
      },
      "createdAt": "2023-10-10T14:48:00.000Z",
      "updatedAt": "2023-10-10T14:48:00.000Z"
    }
  ]
}

Get Project by ID

URL: /project/{id}
Method: GET
Description: Get a specific project by its ID
Headers:
- Authorization (String) [required]: Bearer token
Path Parameters:
- id (String): The ID of the project to retrieve
Status Codes:
- 200: OK
- 404: Project not found (project is not yet created)
- 500: Internal server error

Response Example:

{
  "project": {
    "_id": "60d5ec49eb172b30fc6d16b1",
    "name": "Project Alpha",
    "city": "60d5ec49eb172b30fc6d16b1",
    "users": ["60d5ec49eb172b30fc6d16b1"],
    "centerCoords": [7.6261, 51.9607],
    "initialZoom": 10,
    "preferences": {
      "fillThresholds": [30, 70],
      "batteryThresholds": [30, 70]
    },
    "createdAt": "2023-10-10T14:48:00.000Z",
    "updatedAt": "2023-10-10T14:48:00.000Z"
  }
}

Create Project

URL: /project
Method: POST
Description: Create a new project. Only users with the role SUPERADMIN can create new projects.
Headers:
- Authorization (String) [required]: Bearer token
Body Parameters:
- name (String): The name of the project, must be unique
- city (String): The ID of the associated city
- users (Array): An array of user IDs associated with the project
- centerCoords (Array): The center coordinates of the project, [longitude, latitude]
- initialZoom (Number): Initial zoom level for the project map
- preferences (Object): Preference settings for the project, including fillThresholds and batteryThresholds
Status Codes:
- 201: Created
- 403: Forbidden (choose role SUPERADMIN)
- 409: Conflict (project already exists)
- 404: Not found (City or user does not exist)
- 500: Internal server error

Request Body Example:

{
  "name": "Project 2",
  "city": "60d5ec49eb172b30fc6d16b2",
  "users": ["60d5ec49eb172b30fc6d16b3", "60d5ec49eb172b30fc6d16b4"],
  "centerCoords": [7.62, 51.96],
  "initialZoom": 8,
  "preferences": {
    "fillThresholds": [25, 75],
    "batteryThresholds": [20, 80]
  }
}

Update Project

URL: /project/{id}
Method: PATCH
Description: Update an existing project. Only users associated with the project or with the role SUPERADMIN can update the project.
Headers:
- Authorization (String) [required]: Bearer token
Path Parameters:
- id (String): The ID of the project to update
Body Parameters: (all optional)
- name (String): The new name of the project (must be unique)
- city (String): The ID of the associated city
- users (Array): An array of user IDs associated with the project
- centerCoords (Array): The new center coordinates of the project, [longitude, latitude]
- initialZoom (Number): Initial zoom level for the project map
- preferences (Object): New preference settings for the project, including fillThresholds and batteryThresholds
Status Codes:
- 200: OK
- 403: Forbidden (choose role SUPERADMIN)
- 409: Conflict (project already exists)
- 404: Not found (City or project does not exist)
- 500: Internal server error

Request Body Example:

{
  "name": "Updated Project 1",
  "city": "60d5ec49eb172b30fc6d16b1",
  "users": ["60d5ec49eb172b30fc6d16b1", "60d5ec49eb172b30fc6d16b2"],
  "centerCoords": [7.63, 51.97],
  "initialZoom": 9,
  "preferences": {
    "fillThresholds": [20, 80],
    "batteryThresholds": [25, 75]
  }
}

Sensor

Get All Sensors

URL: /sensors
Method: GET
Description: Get a list of all sensors
Headers:
- Authorization (String) [required]: Bearer token
Status Codes:
- 200: OK
- 500: Internal server error

Response Example:

{
  "_id": "60d5ec49eb172b30fc6d16b1",
  "trashbin": {
    "_id": "60d5ec49eb172b30fc6d16a1",
    "name": "Trashbin A",
    "project": "60d5ec49eb172b30fc6d16a2"
  },
  "measure": "fill_level",
  "unit": "percentage",
  "history": [],
  "createdAt": "2023-10-10T14:48:00.000Z",
  "updatedAt": "2023-10-10T14:48:00.000Z"
}

Get Sensor by ID

URL: /sensors/{id}
Method: GET
Description: Get a specific sensor by its ID
Headers:
- Authorization (String) [required]: Bearer token
Path Parameters:
- id (String): The ID of the sensor to retrieve
Status Codes:
- 200: OK
- 404: Sensor not found (sensor is not yet created)
- 500: Internal server error

Response Example:

{
  "_id": "60d5ec49eb172b30fc6d16b1",
  "trashbin": {
    "_id": "60d5ec49eb172b30fc6d16a1",
    "name": "Trashbin A",
    "project": "60d5ec49eb172b30fc6d16a2

Get Sensor by ID (continued)

Response Example (continued):

{
  "_id": "60d5ec49eb172b30fc6d16b1",
  "trashbin": {
    "_id": "60d5ec49eb172b30fc6d16a1",
    "name": "Trashbin A",
    "project": "60d5ec49eb172b30fc6d16a2"
  },
  "measure": "fill_level",
  "unit": "percentage",
  "history": [],
  "createdAt": "2023-10-10T14:48:00.000Z",
  "updatedAt": "2023-10-10T14:48:00.000Z"
}

Create Sensor

URL: /sensors
Method: POST
Description: Create a new sensor and associate it with a trashbin. Only users associated with the project that the trashbin belongs to can create sensors within that project.
Headers:
- Authorization (String) [required]: Bearer token
Body Parameters:
- trashbinID (String): The ID of the associated trashbin
- measure (String): The type of measure, either fill_level or battery_level
Status Codes:
- 200: OK
- 400: Bad Request (trashbinID is required)
- 403: Forbidden (user has to be associated to project that sensor belongs to)
- 404: Not found (Trashbin or project does not exist)
- 500: Internal server error

Response Example:

{
  "message": "Sensor created successfully",
  "newSensor": {
    "_id": "60d5ec49eb172b30fc6d16b1",
    "trashbin": "60d5ec49eb172b30fc6d16a1",
    "measure": "fill_level",
    "unit": "percentage",
    "history": [],
    "createdAt": "2023-10-10T14:48:00.000Z",
    "updatedAt": "2023-10-10T14:48:00.000Z"
  }
}

Trashbin

Get All Trashbins

URL: /trashbins
Method: GET
Description: Get a list of all trash bins
Headers:
- Authorization (String) [required]: Bearer token
Status Codes:
- 200: OK
- 500: Internal server error

Response Example:

{
  "_id": "60d5ec49eb172b30fc6d16b1",
  "identifier": "TRB123",
  "coordinates": [7.6261, 51.9607],
  "location": "Location Name",
  "project": "60d5ec49eb172b30fc6d16a2",
  "sensors": [],
  "createdAt": "2023-10-10T14:48:00.000Z",
  "updatedAt": "2023-10-10T14:48:00.000Z"
}

Get Trashbin by ID

URL: /trashbins/{id}
Method: GET
Description: Get a specific trash bin by its ID
Headers:
- Authorization (String) [required]: Bearer token
Path Parameters:
- id (String): The ID of the trash bin to retrieve
Status Codes:
- 200: OK
- 404: Trashbin not found (trashbin is not yet created)
- 500: Internal server error

Response Example:

{
  "_id": "60d5ec49eb172b30fc6d16b1",
  "identifier": "TRB123",
  "coordinates": [7.6261, 51.9607],
  "location": "Location Name",
  "project": "60d5ec49eb172b30fc6d16a2",
  "sensors": [],
  "createdAt": "2023-10-10T14:48:00.000Z",
  "updatedAt": "2023-10-10T14:48:00.000Z"
}

Create Trashbin

URL: /trashbins
Method: POST
Description: Create a new trashbin and associate it with a project. Only users with the role SUPERADMIN or ADMIN belonging to the project can create trashbins.
Headers:
- Authorization (String) [required]: Bearer token
Body Parameters:
- project (String): The ID of the associated project
- longitude (Number): The longitude coordinate of the trashbin
- latitude (Number): The latitude coordinate of the trashbin
Status Codes:
- 200: OK
- 400: Bad Request (trashbinID is required)
- 403: Forbidden (user has to be associated to project + choose role SUPERADMIN or ADMIN)
- 404: Not found (Trashbin or project does not exist)
- 500: Internal server error

Response Example:

{
  "message": "Trash can created successfully"
}

Update Trashbin

URL: /trashbins/{id}
Method: PATCH
Description: Update an existing trashbin. Only users with the role SUPERADMIN or ADMIN belonging to the project can update trashbins.
Headers:
- Authorization (String) [required]: Bearer token
Path Parameters:
- id (String): The ID of the trashbin to update
Status Codes:
- 200: OK
- 403: Forbidden (choose role SUPERADMIN or ADMIN)
- 404: Not found (Trashbin or project does not exist)
- 500: Internal server error

Response Example:

{
  "message": "Trash can updated successfully"
}

This concludes the API documentation section.

License

© 2024 The TinyAIoT Project Seminar Team at the University of Münster.
This documentation is licensed under the Creative Commons Attribution 4.0 International license unless explicitly noted otherwise.

Name		Name	Last commit message	Last commit date
Latest commit History 84 Commits
.vscode		.vscode
dist		dist
src		src
.dockerignore		.dockerignore
.gitignore		.gitignore
.prettierrc.json		.prettierrc.json
Dockerfile		Dockerfile
README.md		README.md
nodemon.json		nodemon.json
package.json		package.json
tsconfig.json		tsconfig.json

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backend

Backend Project

Prerequisites

Installation

Configuration

Scripts

Development

Building for Production

Running in Production

Dependencies

API Documentation

Backend Project

API Documentation

Base URL

Authentication

Login

Signup

Update User

City

Get City by ID

Get All Cities

Create City

Project

Get All Projects

Get Project by ID

Create Project

Update Project

Sensor

Get All Sensors

Get Sensor by ID

Get Sensor by ID (continued)

Create Sensor

Trashbin

Get All Trashbins

Get Trashbin by ID

Create Trashbin

Update Trashbin

License

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